Obtaining Nanopowder Pseudo-Ligatures Al-(SiC+Si3N4) for Modification of Aluminum Alloys

Antonina A. Kuzina; Anna V. Kuts

doi:10.4028/www.scientific.net/KEM.684.310

Paper Titles

Nanostructured Aluminum Matrix Composites of Al-10%TiC Obtained In Situ by the SHS Method in the Melt
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Obtaining Nanopowder Pseudo-Ligatures Al-(SiC+Si₃N₄) for Modification of Aluminum Alloys
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Recovery Technology Features of Aerospace Parts by Layering Synthesis
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Metal-Polymer-Metal Laminates for Lightweight Application
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Study of Stress Relaxation for 5056 Alloy in Vacuum Conditions
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HomeKey Engineering MaterialsKey Engineering Materials Vol. 684Obtaining Nanopowder Pseudo-Ligatures...

Obtaining Nanopowder Pseudo-Ligatures Al-(SiC+Si₃N₄) for Modification of Aluminum Alloys

Abstract:

It was investigated the mechanical mixing and compacting briquettes of aluminum powder (particle size 75...250 μm) and nanopowder modifier SiC+Si₃N₄ (particle size 70...100 nanometers), obtained by the azide technology SHS. The mixtures containing 2.5%, 5%, 10%, 15% of the modifier were investigated. Mechanical mixing was carried out during 60 minutes in planetary mill «Pulverizette-5». Some physic-technological properties of the obtained powder mixtures, such as, particle size distribution, density, bulk weight and flowability, are determined. The powder compositions pressing was carried out on hydraulic press PSU-50 with pressure 25...90 MPa. Nanopowder pseudo-ligatures of 18 mm diameter, height to 4.6 mm, weighing 2.5 grams, with relative density 77...93%, intended for subsequent input in aluminum melt with the aim of modification are obtained.

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Periodical:

Key Engineering Materials (Volume 684)

Pages:

310-315

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.684.310

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Online since:

February 2016

Authors:

Antonina A. Kuzina, Anna V. Kuts

Keywords:

Aluminum Powder, Bulk Density, Flowability, Mechanical Mixing, Modification, Nanopowders, Particle Size Distribution, Porosity, Pressing, Relative Density, Silicon Carbide, Silicon Nitride

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